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consecutive numbers integers rugby planes sport 2d shapes geometric means chalkdust crossnumber means squares time clocks volume cube numbers the only crossnumber differentiation square numbers lines decahedra area arrows wordplay averages tiling dice addition remainders albgebra pentagons irreducible numbers shapes geometric mean square roots grids graphs cards crossnumbers crossnumber parabolas polygons digits dodecagons 3d shapes mean perimeter combinatorics multiples prime numbers folding tube maps bases complex numbers proportion tangents pascal's triangle probability floors routes money tournaments trigonometry quadratics digital clocks binary ave advent triangle numbers functions regular shapes people maths ellipses hexagons partitions algebra median polynomials chess logic sum to infinity taxicab geometry gerrymandering fractions dominos doubling expansions cryptic clues multiplication cubics coins range surds games sums christmas unit fractions spheres elections books dates factorials circles chocolate integration axes rectangles triangles speed probabilty symmetry scales even numbers crosswords colouring shape indices cryptic crossnumbers division number consecutive integers menace numbers geometry coordinates palindromes angles quadrilaterals perfect numbers odd numbers calculus sequences digital products matrices percentages determinants sets products factors star numbers balancing